Calculate the potential (emf) of a working galvanic cell that is based on these two half cells and standard potentials (both written as reduction reactions) in an aqueous basic solution. Cr3+(aq) → Cr2+(aq) E°(Cr3+/Cr2+) = −0.50 V IO2−(aq) → I2(aq) E°( IO2−/I2) = +1.80 V
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